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package com.mbien.opencl;
import com.mbien.opencl.CLBuffer.Mem;
import com.mbien.opencl.CLCommandQueue.Mode;
import com.mbien.opencl.CLDevice.SingleFPConfig;
import java.io.IOException;
import java.nio.ByteBuffer;
import java.util.EnumSet;
import java.util.Map;
import org.junit.BeforeClass;
import org.junit.Test;
import static org.junit.Assert.*;
import static java.lang.System.*;
import static com.mbien.opencl.TestUtils.*;
import static com.sun.gluegen.runtime.BufferFactory.*;
/**
* Test testing the high level bindings.
* @author Michael Bien
*/
public class HighLevelBindingTest {
@BeforeClass
public static void setUpClass() throws Exception {
out.println("OS: " + System.getProperty("os.name"));
out.println("ARCH: " + System.getProperty("os.arch"));
out.println("VM: " + System.getProperty("java.vm.name"));
out.println("lib path: " + System.getProperty("java.library.path"));
}
@Test
public void contextlessTest() {
out.println(" - - - highLevelTest; contextless - - - ");
// enum tests
final EnumSet<SingleFPConfig> singleFPConfig = SingleFPConfig.valuesOf(CL.CL_FP_DENORM | CL.CL_FP_ROUND_TO_INF);
assertEquals(0, SingleFPConfig.valuesOf(0).size());
assertTrue(singleFPConfig.contains(SingleFPConfig.DENORM));
assertTrue(singleFPConfig.contains(SingleFPConfig.ROUND_TO_INF));
final EnumSet<Mode> queueMode = Mode.valuesOf(CL.CL_QUEUE_OUT_OF_ORDER_EXEC_MODE_ENABLE | CL.CL_QUEUE_PROFILING_ENABLE);
assertEquals(0, Mode.valuesOf(0).size());
assertTrue(queueMode.contains(Mode.OUT_OF_ORDER_EXEC_MODE));
assertTrue(queueMode.contains(Mode.PROFILING_MODE));
// platform/device info tests
CLPlatform[] clPlatforms = CLPlatform.listCLPlatforms();
for (CLPlatform platform : clPlatforms) {
out.println("platform info:");
out.println(" name: "+platform.getName());
out.println(" id: "+platform.ID);
out.println(" profile: "+platform.getProfile());
out.println(" version: "+platform.getVersion());
out.println(" vendor: "+platform.getVendor());
out.println(" max FLOPS device: "+platform.getMaxFlopsDevice());
CLDevice[] clDevices = platform.listCLDevices();
for (CLDevice device : clDevices) {
out.println("device info:");
out.println(" name: "+device.getName());
out.println(" profile: "+device.getProfile());
out.println(" vendor: "+device.getVendor());
out.println(" type: "+device.getType());
out.println(" global mem: "+device.getGlobalMemSize()/(1024*1024)+" MB");
out.println(" local mem: "+device.getLocalMemSize()/1024+" KB");
out.println(" local mem type: "+device.getLocalMemType());
out.println(" global mem cache size: "+device.getGlobalMemCachSize());
out.println(" global mem cache type: "+device.getGlobalMemCacheType());
out.println(" constant buffer size: "+device.getMaxConstantBufferSize());
out.println(" queue properties: "+device.getQueueProperties());
out.println(" clock: "+device.getMaxClockFrequency()+" MHz");
out.println(" timer res: "+device.getProfilingTimerResolution()+" ns");
out.println(" single FP config: "+device.getSingleFPConfig());
out.println(" max work group size: "+device.getMaxWorkGroupSize());
out.println(" max compute units: "+device.getMaxComputeUnits());
out.println(" extensions: "+device.getExtensions());
}
}
}
@Test
public void vectorAddGMTest() throws IOException {
out.println(" - - - highLevelTest; global memory kernel - - - ");
CLPlatform[] clPlatforms = CLPlatform.listCLPlatforms();
CLContext context = CLContext.create(clPlatforms[0]);
CLDevice[] contextDevices = context.getCLDevices();
out.println("context devices:");
for (CLDevice device : contextDevices) {
out.println(" "+device.toString());
}
out.println("max FLOPS device: " + context.getMaxFlopsDevice());
CLProgram program = context.createProgram(getClass().getResourceAsStream("testkernels.cl")).build();
CLDevice[] programDevices = program.getCLDevices();
assertEquals(contextDevices.length, programDevices.length);
out.println("build log:\n"+program.getBuildLog());
out.println("build status:\n"+program.getBuildStatus());
String source = program.getSource();
assertFalse(source.trim().isEmpty());
// out.println("source:\n"+source);
// Map<CLDevice, byte[]> binaries = program.getBinaries();
// assertFalse(binaries.isEmpty());
int elementCount = 11444777; // Length of float arrays to process (odd # for illustration)
int localWorkSize = 256; // set and log Global and Local work size dimensions
int globalWorkSize = roundUp(localWorkSize, elementCount); // rounded up to the nearest multiple of the LocalWorkSize
out.println("allocateing buffers of size: "+globalWorkSize);
ByteBuffer srcA = newDirectByteBuffer(globalWorkSize*SIZEOF_INT);
ByteBuffer srcB = newDirectByteBuffer(globalWorkSize*SIZEOF_INT);
ByteBuffer dest = newDirectByteBuffer(globalWorkSize*SIZEOF_INT);
fillBuffer(srcA, 23456);
fillBuffer(srcB, 46987);
CLBuffer<ByteBuffer> clBufferA = context.createBuffer(srcA, Mem.READ_ONLY);
CLBuffer<ByteBuffer> clBufferB = context.createBuffer(srcB, Mem.READ_ONLY);
CLBuffer<ByteBuffer> clBufferC = context.createBuffer(dest, Mem.WRITE_ONLY);
Map<String, CLKernel> kernels = program.getCLKernels();
for (CLKernel kernel : kernels.values()) {
out.println("kernel: "+kernel.toString());
}
assertNotNull(kernels.get("VectorAddGM"));
assertNotNull(kernels.get("Test"));
CLKernel vectorAddKernel = kernels.get("VectorAddGM");
vectorAddKernel.setArg(0, clBufferA)
.setArg(1, clBufferB)
.setArg(2, clBufferC)
.setArg(3, elementCount);
CLCommandQueue queue = programDevices[0].createCommandQueue();
// Asynchronous write of data to GPU device, blocking read later
queue.putWriteBuffer(clBufferA, false)
.putWriteBuffer(clBufferB, false)
.putNDRangeKernel(vectorAddKernel, 1, null, new long[]{ globalWorkSize }, new long[]{ localWorkSize })
.putReadBuffer(clBufferC, true)
.finish().release();
out.println("a+b=c result snapshot: ");
for(int i = 0; i < 10; i++)
out.print(dest.getInt()+", ");
out.println("...; "+dest.remaining()/SIZEOF_INT + " more");
assertTrue(3 == context.getCLBuffers().size());
clBufferA.release();
assertTrue(2 == context.getCLBuffers().size());
assertTrue(2 == context.getCLBuffers().size());
clBufferB.release();
assertTrue(1 == context.getCLBuffers().size());
assertTrue(1 == context.getCLBuffers().size());
clBufferC.release();
assertTrue(0 == context.getCLBuffers().size());
assertTrue(1 == context.getCLPrograms().size());
program.release();
assertTrue(0 == context.getCLPrograms().size());
context.release();
}
@Test
public void writeCopyReadBufferTest() throws IOException {
out.println(" - - - highLevelTest; copy buffer test - - - ");
final int elements = 10000000; //many..
CLContext context = CLContext.create();
// the CL.MEM_* flag is probably completly irrelevant in our case since we do not use a kernel in this test
CLBuffer<ByteBuffer> clBufferA = context.createByteBuffer(elements*SIZEOF_INT, Mem.READ_ONLY);
CLBuffer<ByteBuffer> clBufferB = context.createByteBuffer(elements*SIZEOF_INT, Mem.READ_ONLY);
// fill only first read buffer -> we will copy the payload to the second later.
fillBuffer(clBufferA.buffer, 12345);
CLCommandQueue queue = context.getCLDevices()[0].createCommandQueue();
// asynchronous write of data to GPU device, blocking read later to get the computed results back.
queue.putWriteBuffer(clBufferA, false) // write A
.putCopyBuffer(clBufferA, clBufferB, clBufferA.buffer.capacity()) // copy A -> B
.putReadBuffer(clBufferB, true) // read B
.finish();
context.release();
ByteBuffer a = clBufferA.buffer;
ByteBuffer b = clBufferB.buffer;
// print first few elements of the resulting buffer to the console.
out.println("validating computed results...");
for(int i = 0; i < elements; i++) {
int aVal = a.getInt();
int bVal = b.getInt();
if(aVal != bVal) {
out.println("a: "+aVal);
out.println("b: "+bVal);
out.println("position: "+a.position());
fail("a!=b");
}
}
out.println("results are valid");
}
@Test
public void rebuildProgramTest() throws IOException {
out.println(" - - - highLevelTest; rebuild program test - - - ");
CLContext context = CLContext.create();
CLProgram program = context.createProgram(getClass().getResourceAsStream("testkernels.cl"));
try{
program.getCLKernels();
fail("expected exception but got none :(");
}catch(CLException ex) {
out.println("got expected exception:\n"+ex.getMessage());
assertEquals(ex.errorcode, CL.CL_INVALID_PROGRAM_EXECUTABLE);
}
program.build();
assertTrue(program.isExecutable());
out.println(program.getBuildStatus());
Map<String, CLKernel> kernels = program.getCLKernels();
assertNotNull(kernels);
assertTrue("kernel map is empty", kernels.size() > 0);
// rebuild
// 1. release kernels (internally)
// 2. build program
program.build();
assertTrue(program.isExecutable());
out.println(program.getBuildStatus());
// try again with rebuilt program
kernels = program.getCLKernels();
assertNotNull(kernels);
assertTrue("kernel map is empty", kernels.size() > 0);
assertTrue(kernels.size() > 0);
context.release();
}
}
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